Length of wood-sweeping brush handle or similar-works just as well and is cheaper
it gets in the way. And the bonnet is bloody heavy when you knock the support out.
I've converted several old cars to gas struts instead of a support. The first was a Capri, and the thread on the owners forum ran to pages of where to attach them, how strong they needed to be, how to work it out, where to buy them and whether it was worth doing such an expensive(!) job. I got so irritated by the lack of progress that I grabbed a spare pair of tailgate struts from my stash, drilled an 8mm hole in the hinge web, cut some 1" angle and bolted a piece to one of the topmount bolts, and drilled another hole where the other end of the strut looked about right. Took maybe 15 minutes, and worked for years. The Avenger got a similar arrangement, but used Vectra tailgate struts and I had to weld the angle brackets to the inner wing. Having demonstrated this at an ASOC day, several cars appeared with similar arrangements but everyone had spent loads more time laying everything out to 'do it properly'. All I'd done was ensure that the brackets were symmetrical so they looked right and the flimsy bonnet didn't twist.